THE APPLICATION OF CHEMISTRY IN ENVIRONMENT
Year:2011 | Volume:2 | Issue:7|Papers Count:8

One of the most important derivatives of heteroaromatic compounds Isoxazole properties and numerous applications, including applications in pharmaceutical, agricultural, industrial and biological properties are. Isoxazole have attracted much attention in the pharmacy and the impact of these compounds in the treatment of Parkinson's and Alzheimer's disease has been proved.3 compounds are synthesized in the present research work.By hydroxyl amine hydrochloride in the presence and in the first Bans Aldehyde solvent pyridine to form viscous liquid (compound 1) was converted. Then with sodium hypochlorite to the Nytryl Oxide become oxidized and the process, the creation [2+3] was performed using properly alcohol liquid mixture of isomers of 3 - phenyl Isoxazole- 5 – yl methanol and 4- Isoxazole phenyl-5-yl methanol was obtained. The addition of nitric acid at a temperature of zero degrees Celsius on Sulfuric acid composition (2), (3- (3-nytrofinil) Isoxazole- 5-yl) methanol (compound3) was obtained.Structure of the synthesized compounds by FT-IR and 1HNMR spectroscopy has been approved.

Islamic Azad University-Ahar Branch The Application of Chemistry in Environment Despite the urban waste and extend the growing use of polymeric materials causes the material was in many cases replaced traditional materials such as stone, wood, metal and... Be. Rapid expansion of the petrochemical industry in Iran, a range of different plastic materials is produced by industry. The increased production of plastic raw materials, the plastic waste with the same or slightly lower rates can be accelerated. Energy reprocessing as a way to have an important role in converting waste to be buried waste reprocessing is to be its importance as an independent solution to access Waste Management has retained. Due to the increasing application of polymeric materials, especially disposable bottles (polyethylene phthalate more) problems in the environment due to irresolvable provide for controlling the environmental pollution caused by polymeric materials and increased its productivity, the basic measures The following should do: 1. Avoid rot two sources for all plastics applications.2. Changing plastic waste from the burial ground, which caused the loss of valuable resources are other ways 3. To maximize the reprocessing work by making all the choices available to reprocessing in a manner independent waste management 4. Correct diagnosis and the fact that the efficiency of waste plastics from both perspectives provide source material for recycling provid of energy sources are most valuable.5. Raise awareness of the value inherent in plastic calories (like oil) 6. Develop ways that can be the least economic and environmental impacts from the perspective of cost / profit is taken.With the reprocessing industry to get serious and mechanizing the industry in addition to saving the environment from the devastation, including the abatement of income losses of primary sources, the emergence of a new energy source, optimal Assfadh cases according to the increase in unemployment rate country can be a new job in order to increase economic productivity of society be created.

In this inversthngation, the liver of four finger threadfin were separately extraceted for their lipid and fatty acid contents using the method of Biling and dyer. Choloroform was used as solvent extraction for non polar and methanol was used as solvent extraction for polar lipids.After removal of the solvents and evaporated by Rotry Evaprator, the obtining and extract was solved n-Hexane and injected to GC/MS. The GC/MS Spectra of the fractions were obtained.Analisis of the GC/MS Spectra was Carrid out by comparision of the sepectra with eight pike refrence Spectra.. KI values of the compounds were determined and compared with known standard. The results obtained showed that the liver chloroform phase consisted of 20 substances, most of them was cholesterol with24.7percent and also polar phase consisted 2 compounds, Formic acid, 2-methyl propyl ester with2.88 percent and Benzenecarbothioic acid with0.79 percent. Totally 22 compounds were identified in which were 5 fatty acids.The fatty acid were found in liver consist of: 1- (Hexanoic acid), 2- (-5- Hexanoic acid), 3- (Heptanoic acid), 4- (1, 4, 9-Decatriene), 5- (Benzenecarbothioic acid).

Isoxazole compounds which have various pharmacological applications act as antivirus especially. It has been proved that they are effective on the cure of Parkinson and Alzheimer disease. In present research, two kinds of isoxazole and an oxime compound have been synthesized.4-choro benzaldehyde changed into 4- chloro benzaldoxime (1) by increasing of sodium hypochlorite to hydroxylamine hydrochloride in pyridine as a solvent. The compound 1 changed to nitril oxide and [3+2] cycloaddition happened by using propargyl alcohol. As a result 3- (4- chioro phenyl) -5- hydroxyl methyl isoxazole (2) was prepared. In final step, 3- (4- choro phenyl) -5- bromo methyl isoxazole (3) was prepared by reaction of Pbr3 and compound 2 in CH2Cl2. The structure of synthesized compounds were confirmed by FT-IR, 1H NMR spectrocopies.

Isoxazoles are an important series of isomeric heterocyclic compounds which possess interesting pharmacological, optical and electronic properties, in addition to being valuable as building blocks in organic synthesis, in present research a kind of isoxazole and oxime compound have been synthesized. At the first, furan-2-carbaldehyde change into fuan-2-carbaldehyde oxime (1) by increasing sodium hypochlorite to hydroxamine hydrochloride in ethanol and water at 0oC, the compound 1 changed to nitrile oxide and [2+3] cycloaddition happened by using propargyle alcohol, as a result 3- (furan-2-yl) isoxazole-5-caboxylic acid (2) was prepared.

Islamic Azad University-Ahar Branch The Application of Chemistry in Environment Aniline derivatives are very important in settlement due to their high toxicity. Aniline derivatives are common in drug and chemical industries. Oxidation of them is the main solution to remove and on the other hand direct and indirect infiltration by ozone is effective method.

The removal of glucose from aqueous solutions by different processes such as nano-TiO2, H2O2 and nano- TiO2/H2O2 was investigated and the effect of some parameters such as pH (range of 2-10), nano-TiO2 dosage (0.01-0.05 g), H2O2 concentration (100-500 ppm), glucose concentration (1000-4000 ppm) and temperature (35, 45, 55, 65oC) was studied. The H2O2 and TiO2 concentrations were optimized using different concentrations of them. The optimum conditions of the nano-TiO2/H22O2 treatment were: [H2O2]0=100 ppm, [nano-TiO2]0=0.03 g/L, initial pH=6 and Temperature=65oC.Results showed the pseudo-first-order kinetic model was the most appropriate model, describing the degradation kinetic.

In this article elimination of glucose from aquatic solution by different methods such as TiO2 nano particles and H2O2 have investigated. Important parameters like pH (2-10) and ratio of nano particles to glucose and other things have accomplished. Best condition was founded as: [H2O2] =100 ppm, [nano-TiO2]=0.03 g/L, initial pH=6, Temperature=65oC The results showed that the degradation process of glucose in aqueous solution follow of the pseudo first-order system.